character: Dr. Emily Johnson
topic: Immune Response to Viral Infections
grade: 9
subject: Science
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character: Professor Alan Green
topic: Understanding the Immune System
grade: 9
subject: Science
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character: Dr. Sarah Lee
topic: Viral Pathogens and Immune Defenses
grade: 9
subject: Science
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character: Mr. David Brown
topic: Significance of Antibodies in Viral Infections
grade: 9
subject: Science
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